When you need Scout uniform or other Scouting supplies, you have a few options:
Reading Scout & Guide Shop
The shop is open Tuesdays, Wednesdays and Saturdays during term time, and is found at 163 Northcourt Avenue, Reading. RG2 7HG
Please see http://readingscoutandguideshop.co.uk for more details.
Loddon District Shop
The shop is usually open Thursdays 3-5pm & 7-9pm and Saturdays 10am-12noon, during term time. It is found in the grounds of 1st Woodley Headquarters at The Close, Southlake Crescent, Woodley, Reading. RG5 3QL
Please see http://www.loddondistrict.org.uk/index.php/district-shop for more details.
John Lewis in Reading has a small supply of Scout uniform, on the first floor near the toy section.